CN112032044A

CN112032044A - Compressor casing subassembly, compressor and attemperator

Info

Publication number: CN112032044A
Application number: CN202010793504.9A
Authority: CN
Inventors: 凡沁; 相玲玲; 彭杰; 麦嘉伟; 朱飞; 黄骏
Original assignee: Wanbao Group Compressor Co ltd
Current assignee: Wanbao Group Compressor Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2020-12-04
Anticipated expiration: 2040-08-10
Also published as: CN112032044B

Abstract

The invention discloses a compressor shell assembly, a compressor and temperature regulating equipment, which comprises: the cooling device comprises a shell, a cooling device and a fan, wherein an air suction port and an air exhaust port are arranged on the shell, and a cooling installation area is arranged on the outer surface of the shell; the air suction gas circuit is positioned on the inner side of the cooling installation area, an air suction gas circuit inlet is formed at the air suction port of the air suction gas circuit, and the air suction gas circuit is provided with an air suction gas circuit outlet communicated with the inner cavity of the shell; and the first control valve is used for controlling the refrigerant to enter the air suction path from the air suction path inlet. The cooling installation area is arranged on the outer surface of the casing and used for being connected with accessories such as a controller and the like, the low-temperature refrigerant is sucked through the first control valve, the accessories such as the controller and the like located in the cooling installation area are fully cooled in a gas suction path, and the refrigerant after heat exchange is sucked into the inner cavity of the casing from the outlet position of the gas suction path to carry out the normal gas suction compression process. According to the technical scheme, the working stability of accessories such as the controller and the like is improved through the optimized design of the gas circuit.

Description

Compressor casing subassembly, compressor and attemperator

Technical Field

The invention is used in the field of compressors, and particularly relates to a compressor shell assembly, a compressor and temperature regulating equipment.

Background

The compressor is generally equipped with the more sensitive accessories of ambient temperature such as controller, because the operational environment of compressor is comparatively abominable, ambient temperature is difficult to guarantee, has influenced the job stabilization nature of accessories such as controller greatly.

Meanwhile, if the exhaust temperature of the compressor is abnormally increased, exhaust gas is overheated, the damage to the compressor caused by long-term exhaust overheating operation is particularly large, at the moment, the aluminum parts are easy to generate large thermal deformation, meanwhile, the viscosity of lubricating oil is reduced, the lubricating and sealing effects are affected, the lubricating oil carbonization risk is increased, and therefore the service life of the compressor is shortened.

Disclosure of Invention

The invention aims to solve at least one technical problem in the prior art, and provides a compressor shell assembly, a compressor and a temperature regulating device.

The technical scheme adopted by the invention for solving the technical problems is as follows:

in a first aspect, a compressor housing assembly, comprising:

the cooling device comprises a shell, a cooling device and a fan, wherein an air suction port and an air exhaust port are arranged on the shell, and a cooling installation area is arranged on the outer surface of the shell;

the air suction gas circuit is positioned on the inner side of the cooling installation area, an air suction gas circuit inlet is formed at the air suction port of the air suction gas circuit, and the air suction gas circuit is provided with an air suction gas circuit outlet communicated with the inner cavity of the shell;

and the first control valve is used for controlling the refrigerant to enter the air suction path from the air suction path inlet.

With reference to the first aspect, in certain implementations of the first aspect, the suction air path is sinuously wound inside the cooling installation area.

With reference to the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, the method further includes:

the exhaust gas path is at least partially parallel to the air suction gas path, the exhaust gas path is separated from the air suction gas path and realizes heat exchange, and an exhaust gas path inlet and an exhaust gas path outlet are formed at the exhaust port of the exhaust gas path;

and the second control valve is used for controlling the refrigerant to enter the exhaust gas path from the inlet of the exhaust gas path.

With reference to the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, the exhaust gas path and the suction gas path are both disposed in the casing and form a sleeve type heat exchange structure.

With reference to the first aspect and the foregoing implementations, in certain implementations of the first aspect, the suction gas path has a slope in a direction from the suction gas path inlet to the suction gas path outlet.

With reference to the first aspect and the foregoing implementations, in certain implementations of the first aspect, the exhaust gas path is provided with a lubrication oil separation assembly, which includes:

the oil collecting pipe is vertically arranged and extends into the exhaust gas path to block the exhaust gas path, and exhaust through holes for conducting the exhaust gas paths on two sides are formed in the pipe wall of the oil collecting pipe;

the oil filtering component is arranged between the exhaust through holes on the two sides;

and the oil discharge part is arranged at a bottom pipe orifice of the oil collection pipe.

With reference to the first aspect and the implementations described above, in certain implementations of the first aspect,

the oil filtering component is provided with a bulge on the surface of one side which is in contact with the exhaust airflow;

the oil discharge part comprises a rolling part, the rolling part is connected with the oil collecting pipe through a rotating shaft, the rolling part is provided with an outer peripheral surface matched with the pipe wall of the oil collecting pipe, and an oil storage tank is arranged on the outer peripheral surface of the top of the rolling part.

In a second aspect, a compressor includes the compressor housing assembly of any one of the implementations of the first aspect.

With reference to the second aspect and the foregoing implementation manners, in some implementation manners of the second aspect, the compressor includes an inverter scroll compressor, and further includes an IGBT module, and the IGBT module is disposed in the cooling installation area.

In a third aspect, a temperature adjusting device comprises the compressor in any implementation manner of the second aspect.

One of the above technical solutions has at least one of the following advantages or beneficial effects: the cooling installation area is arranged on the outer surface of the casing and used for being connected with accessories such as a controller and the like, the low-temperature refrigerant is sucked through the first control valve, the accessories such as the controller and the like located in the cooling installation area are fully cooled in a gas suction path, and the refrigerant after heat exchange is sucked into the inner cavity of the casing from the outlet position of the gas suction path to carry out the normal gas suction compression process. According to the technical scheme, the working stability of accessories such as the controller and the like is improved through the optimized design of the gas circuit.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of an exhaust gas circuit and a suction gas circuit of an embodiment of a compressor of the present invention;

FIG. 2 is a schematic view of the suction port and first control valve configuration of one embodiment shown in FIG. 1;

FIG. 3 is a schematic illustration of an exhaust port and a second control valve configuration according to one embodiment shown in FIG. 1;

FIG. 4 is a schematic view of the front cover configuration of one embodiment shown in FIG. 1;

FIG. 5 is a schematic view of the arrangement of the double-walled heat exchange structure in the rear shell of the embodiment shown in FIG. 1;

FIG. 6 is a schematic illustration of the configuration of one embodiment lube oil separation module shown in FIG. 1;

FIG. 7 is a schematic diagram of the rolling element configuration of one embodiment shown in FIG. 1;

fig. 8 is a schematic view of the rolling principle of the rolling member of one embodiment shown in fig. 1.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the present invention, if directions (up, down, left, right, front, and rear) are described, it is only for convenience of describing the technical solution of the present invention, and it is not intended or implied that the technical features referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, it is not to be construed as limiting the present invention.

In the invention, the meaning of "a plurality" is one or more, the meaning of "a plurality" is more than two, and the terms of "more than", "less than", "more than" and the like are understood to exclude the number; the terms "above", "below", "within" and the like are understood to include the instant numbers. In the description of the present invention, if there is description of "first" and "second" only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the present invention, unless otherwise specifically limited, the terms "disposed," "mounted," "connected," and the like are to be understood in a broad sense, and for example, may be directly connected or indirectly connected through an intermediate; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above-mentioned words in the present invention can be reasonably determined by those skilled in the art in combination with the detailed contents of the technical solutions.

Referring to fig. 1 and 2, an embodiment of the present invention provides a compressor, which includes a compressor casing assembly 1 and a movement assembly 2, wherein the movement assembly 2 is located inside the compressor casing assembly 1, the compressor casing assembly 1 includes a casing, a suction air path 11 and a first control valve 12, the casing includes a front cover 13 and a rear casing 14, and the front cover 13 is connected with the rear casing 14 and covers the movement assembly 2 inside. The shell is provided with a suction port 15 and an exhaust port 16, when the compressor works, the machine core component 2 continuously sucks the refrigerant from the suction port 15, compresses the refrigerant and then exhausts the compressed refrigerant through the exhaust port 16, and the cycle is repeated.

Referring to fig. 3 and 5, the outer surface of the housing is provided with a cooling installation region 17, the cooling installation region 17 may be designed to be a plane, a curved surface or other shapes as required, and the cooling installation region 17 is located at the top or the side of the housing, for example, in the embodiment shown in fig. 3, because the rear housing 14 is large in size, the cooling installation region 17 is located at the outer surface of the rear housing 14 and is used for installing accessories such as controllers and the like.

Referring to fig. 1 and 2, the suction gas path 11 is located inside the cooling installation area 17, the suction gas path 11 forms a suction gas path inlet 110 at the suction port 15, and the suction gas path 11 has a suction gas path outlet 111 communicating with the inner cavity of the cabinet. The first control valve 12 is used for controlling the refrigerant to enter the suction gas path 11 from the suction gas path inlet 110.

In the embodiment of the invention, the cooling installation area 17 is arranged on the outer surface of the shell and is used for connecting accessories such as a controller, a low-temperature refrigerant is controlled to be sucked into the air suction gas path 11 through the first control valve 12, the accessories such as the controller and the like positioned in the cooling installation area 17 are fully cooled in the air suction gas path 11, and the outlet 111 of the heat-exchanged refrigerant air suction gas path enters the inner cavity of the shell to perform a normal air suction compression process. According to the technical scheme, the working stability of accessories such as the controller and the like is improved through the optimized design of the gas circuit.

Referring to fig. 2, the first control valve 12 is located inside the air suction port 15, the air suction path inlet 110 is located outside the first control valve 12, in a normal mode, the first control valve 12 is normally open, when a refrigerant is required to be introduced into the air suction path 11, the first control valve 12 is closed, the refrigerant in the heat pump unit pipeline flows into the air suction path 11 through the air suction path inlet 110 under the action of the core assembly 2, and enters the inner cavity of the housing through the air suction path outlet 111 after exchanging heat with the cooling installation area 17, so that a normal air suction compression process is performed.

Referring to fig. 1, the suction gas path 11 is bent and wound inside the cooling installation region 17 to reduce a flow velocity of a refrigerant in the suction gas path 11, increase a contact length with the cooling installation region 17, and increase heat exchange with the cooling installation region 17.

The compressor is often in a variable working condition running state, particularly a vehicle compressor, under the condition of large load, such as burning sun exposure in full summer, road traffic jam, overhigh heat load of a refrigerating system, poor vacuum degree of the refrigerating system and the like, the input power of a motor of the vehicle compressor is increased, the exhaust temperature is abnormally increased, exhaust is overheated, the damage to the compressor caused by long-term exhaust overheating running is large, at the moment, large thermal deformation is easy to occur to aluminum parts, meanwhile, the viscosity of lubricating oil is reduced, the lubricating and sealing effects are influenced, the carbonization risk of the lubricating oil is increased, and therefore the service life of the compressor is shortened.

In view of this, in some embodiments, referring to fig. 1, 3 and 4, the compressor housing assembly 1 further includes an exhaust gas path 18 and a second control valve 19, at least a portion of the exhaust gas path 18 is parallel to the suction gas path 11, the exhaust gas path 18 is separated from the suction gas path 11 and performs heat exchange, the exhaust gas path 18 forms an exhaust gas path inlet 112 and an exhaust gas path outlet 113 at the exhaust port 16, and the second control valve 19 is configured to control the refrigerant to enter the exhaust gas path 18 from the exhaust gas path inlet 112. The second control valve 19 is located inside the exhaust port 16, the second control valve 19 is located between the exhaust gas path inlet 112 and the exhaust gas path outlet 113, the second control valve 19 is normally open in a normal working mode, and a refrigerant is compressed by the movement assembly 2 and then is discharged through the exhaust port 16. When the exhaust temperature is too high, for example, exceeds 90 ℃, the first control valve 12 and the second control valve 19 are closed, the suction gas and the exhaust gas of the compressor perform sufficient heat exchange, the exhaust temperature can be effectively reduced, and the harm to the compressor caused by long-term exhaust overheating operation is avoided.

The air suction path 11 and the air exhaust path 18 may be formed by providing a pipeline in an inner cavity of the casing, or may adopt the design manner shown in fig. 1, that is, the air exhaust path 18 and the air suction path 11 are both provided in the casing, specifically, the air suction path 11 is disposed at the position of the cooling installation area 17 of the rear casing 14, and the air exhaust path 18 is partially disposed in the rear casing 14, partially disposed in the front cover 13, and the air exhaust path 18 disposed in the front cover 13 is used for guiding the refrigerant exhausted from the movement assembly 2 to the air exhaust port 16. Referring to fig. 1, the exhaust gas path 18 and the air suction path 11 form a sleeve type heat exchange structure, the exhaust gas path 18 is sleeved inside or outside the air suction path 11, the exhaust gas path 18 and the air suction path 11 are integrally formed with the casing, so that the assembly of pipelines is avoided, and the heat exchange effect of the exhaust gas path 18 and the air suction path 11 is greatly improved by adopting the sleeve type heat exchange structure.

The refrigerant discharged by the compressor directly enters the system, the oil discharge rate is high, and when the oil return of the system is poor, the compressor is easy to lack oil, so that poor lubrication is caused, and the compressor is damaged. In view of this, the suction gas path 11 has a slope along the direction from the suction gas path inlet 110 to the suction gas path outlet 111, referring to fig. 5, in the cross-sectional view of the suction gas path 11, a connecting line of circle centers of the cross-section of each suction gas path 11 forms a certain included angle with the horizontal direction, for example, but not limited to, not less than 3 °, and the lubricant oil in the suction gas path is collected to a position with low potential energy by using the gravity action, wherein the lubricant oil in the suction gas path is directly discharged from the suction gas path outlet 111 and.

Referring to fig. 1, in some embodiments, a check valve mechanism 114 is disposed in each of the suction path 11 and the exhaust path 18 to ensure a unidirectional flow of the lubricant and prevent backflow.

In some embodiments, referring to fig. 1, the exhaust gas path 18 is provided with a lubricant oil separating assembly 3, so that the lubricant oil accumulation is avoided from blocking the suction and exhaust gas lines, and the oil discharge rate of the compressor can be reduced, and the reliability of the compressor can be improved.

Referring to fig. 6, the lubricating oil separating assembly 3 includes an oil collecting pipe 31, an oil filtering part 32 and an oil discharging part 33, the oil collecting pipe 31 is connected with the housing, the oil collecting pipe 31 is vertically arranged, the oil collecting pipe 31 extends into the exhaust gas path 18 and blocks the exhaust gas path 18, and exhaust through holes 34 for conducting the exhaust gas paths 18 on two sides are formed in the pipe wall of the oil collecting pipe 31. The oil filter 32 is disposed between the exhaust through holes 34 on both sides, and the oil drain 33 is disposed at the bottom nozzle of the oil collecting pipe 31. The oil-gas mixture with the lubricating oil is separated by oil and gas when passing through the oil filtering part 32, and then flows into a lubricating oil collecting area which is positioned at the bottom of the oil collecting pipe 31 and above the oil discharging part 33 by using the gravity, and the lubricating oil in the lubricating oil collecting area can flow back to the machine shell by opening the oil discharging part 33.

For example, in some embodiments, referring to fig. 6, the oil filtering part 32 adopts an oil filtering belt, the oil filtering part 32 is provided with a protrusion 35 on the surface of one side facing the exhaust gas flow, the oil-gas mixture with the lubricating oil is separated by oil and gas when passing through the oil filtering belt, wherein the protrusion 35 is fully distributed on the oil filtering belt, so that the binding force of oil-gas molecules can be effectively destroyed, the oil is collected on the oil filtering belt, and then flows into the lubricating oil collecting area by using the gravity.

Referring to fig. 6, 7 and 8, the oil discharging part 33 includes a rolling part connected to the oil collecting pipe 31 through a rotating shaft, the rolling part has an outer circumferential surface matched with a pipe wall of the oil collecting pipe 31, and the shape of the rolling part corresponds to the shape of the oil collecting pipe 31, for example, in some embodiments, the oil collecting pipe 31 is a circular pipe, the rolling part is spherical, an oil storage groove 36 is formed on the outer circumferential surface of the top of the rolling part, and the oil storage grooves 36 are provided in plural and are in an arc-shaped curling shape, so as to ensure that an eccentric torque can be generated after the oil storage groove 36 collects lubricating oil, so as to drive the rolling part to rotate. Under the action of gravity F1, the ball periphery is sealed with the pipe wall, lubricating oil is accumulated continuously, when the lubricating oil amount is accumulated to a certain amount, the moment generated by the acting force F2 of the oil is larger than or equal to the moment generated by F1, the ball body can rotate, the lubricating oil is discharged at the moment, and when the oil amount is reduced, the ball body is reset and sealed again, so that the effect of intermittent oil discharge is achieved. It is understood that the oil discharge part 33 may take the form of a pipe plug, a pipe cap, or the like. This embodiment utilizes rolling component self action of gravity, and the discontinuous accurate control oil level, rolling component simple structure, lubricating oil are got back to in the casing easily, can not pile up in the exhaust chamber to influence refrigeration effect.

The compressor may be a scroll compressor, a reciprocating compressor, a centrifugal compressor, etc., depending on the operating principle of the movement assembly 2.

For example, in some embodiments shown in fig. 2, the compressor includes an inverter scroll compressor, the inverter scroll compressor controls the frequency through an IGBT module, the IGBT module is a high-power semiconductor device, the power loss causes the IGBT module to generate more heat, and the junction temperature of the IGBT cannot exceed 125 ℃, and the IGBT module is not suitable for long-term operation at a higher temperature, generally, the current flowing through the IGBT module is larger, the switching frequency is higher, which causes larger loss of the IGBT module device, and if the heat cannot be dissipated in time, the junction temperature of the device exceeds 125 ℃, and the IGBT module is not suitable for long-term operation at a critical temperature, the damage of the IGBT module caused by bad heat dissipation and overheating is that the IGBT damages the operation of the entire machine. The IGBT module has certain power, the module can generate heat, and the overall performance and reliability of the IGBT module are affected by temperature. According to the design rule, one of the design rules shows that when the component works in the environment with the temperature of more than 65 ℃, the failure rate is doubled every time the temperature rises by 10 ℃. It is also an extremely important task to dissipate heat from the IGBT module. In view of this, the IGBT module is disposed in the cooling installation area 17, the temperature of the IGBT module is detected by the temperature sensor, when the temperature exceeds the optimum working temperature, the first control valve 12 is closed, the suction air enters the suction air passage 11 through the suction air passage inlet 110, and in the clip passage, the flow rate of the refrigerant is slowed down, so that the IGBT module can be sufficiently cooled, and the problem of overheating of the IGBT is solved.

The embodiment of the invention also provides temperature adjusting equipment comprising the compressor in any one of the embodiments. The temperature regulating device has the following characteristics:

1. the system does not need to be additionally provided with a pipeline, is simple to implement, and can solve the problems of overhigh exhaust temperature and overheating of the IGBT of the controller, thereby achieving two purposes. Through accurate control, only can close first control valve 12 and second control valve 19 under the overheated condition appear, carry out the heat transfer, can guarantee the high-efficient operation of compressor under the ordinary mode.

2. Utilize rolling component self action of gravity, the discontinuous accurate control oil level, rolling component simple structure, lubricating oil gets back to in the casing easily, can not pile up in the exhaust chamber to influence refrigeration effect.

In the description herein, references to the description of the term "example," "an embodiment," or "some embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope of the claims of the present application.

Claims

1. A compressor housing assembly, comprising:

2. The compressor housing assembly of claim 1, wherein the suction gas path is sinuously wound inside the cooling mounting area.

3. The compressor housing assembly of claim 1, further comprising:

4. The compressor housing assembly of claim 3, wherein the discharge air path and the suction air path are both disposed in the housing and form a double pipe heat exchange structure.

5. The compressor housing assembly of claim 4, wherein the suction gas path has a slope in a direction from a suction gas path inlet to a suction gas path outlet.

6. The compressor housing assembly of claim 4 or 5, wherein the exhaust gas path is provided with a lube oil separator assembly comprising:

7. The compressor housing assembly of claim 6,

8. A compressor comprising the compressor shell assembly of any one of claims 1 to 7.

9. The compressor of claim 8, comprising an inverter scroll compressor, further comprising an IGBT module disposed in the cooling mount area.

10. Tempering device, characterized in that it comprises a compressor according to claim 8 or 9.